MACS 609 – Certification Exam Questions and Answers (Verified Solutions) – 2025 Updated Version

MACS 609 CERTIFICATION EXAM QUESTIONS AND ANSWERS
(VERIFIED ANSWERS) (LATEST UPDATE 2025) UPDATE!!



If lubricant is removed by Re-install lubricant removed by the recovery equipment
recovery equipment during
system refrigerant
removal, what must be done with
the
lubricant?



Before reuse, what must be done Question 2 options:
with Recycle the HFC-134a before reuse using certified equipment
HFC-134a that has been
recovered from a mobile A/C
system using recovery-only
equipment?
When can HFC-134a become If shop air is used in the system in an attempt to check for leaks and
combustible in a mobile air HFC-134a is present
conditioning system?
Which type of mobile A/C system Accumulator type
will usually require additional
time /
precautions to extract all the
refrigerant?
Electronic leak detectors certified 0.15 ounces per year
to SAE J2791 have the capacity
of identifying leakage rates as
low as:
When recovery/recycling Generally, very little, if any
equipment is
used to remove refrigerant from
a mobile A/C system, how
much lubricant will be
removed during the
operation?




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